Prof Gregori is a Fellow of the American Physical Society and a Fellow of the Institute of Physics.
His research interests cover laboratory astrophysics with high power lasers, dense plasmas as found in the interior of stars and planets, and inertial confinement fusion (ICF) energy.
He started at Oxford University in October 2007 as an RCUK Fellow in the Department of Atomic and Laser Physics. In 2012, he became a Fellow and Tutor of Physics at Lady Margaret Hall, and in 2013 he was appointed Professor of Physics.
From 2001 to 2005 Prof Gregori worked at the Lawrence Livermore National Laboratory (USA), in the Fast Ignitor Physics group within the ICF Program. He was a post-doctoral researcher from 2001 to 2003 and then appointed as a staff scientist.
From 2005-2012, Prof Gregori has been holding a senior experimental scientist position at the Rutherford Appleton Laboratory. In 2007, his team was awarded a 2007 Daiwa Adrian Prize for its research into "High energy density science: new frontiers in plasma physics". In 2014, Prof Gregori was awarded the Edouard Fabre International Scientific prize for contribution to the physics of inertial fusion and of laser-produced plasmas and in both 2019 and 2020, the John Dawson Award for excellence in plasma physics. In 2022 he was awarded the Cecelia Payne-Gaposchkin Medal and Prize by the Institute of Physics Physics.
He holds a Ph.D. and an M.S. from the University of Minnesota (Minneapolis, USA) and an M.S. from the University of Bologna (Italy).